Home / 13,519.67-20,285.13-5,623.92

Finding the Fourth Proportional to 13,519.67, 20,285.13 and 5,623.92

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Solution

The fourth proportional to 13,519.67, 20,285.13 and 5,623.92 is: 8,438.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,519.67 : 20,285.13 = 5,623.92 : x
  2. Step 2: Convert to fraction form
    13,519.67/20,285.13 = 5,623.92/x
  3. Step 3: Cross multiply
    13,519.67x = 20,285.13 × 5,623.92
  4. Step 4: Simplify right side
    13,519.67x = 114,081,948.31
  5. Step 5: Solve for x
    x = 114,081,948.31/13,519.67
  6. Step 6: Final answer
    x = 8,438.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.